<!DOCTYPE html>
<html lang="en">
<head>
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    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>学成在线教育平台-专注前端开发30年！</title>
    <style>
        *{
    margin:0;
    padding:0;
    list-style:none;
    text-decoration:none;
}
body{
    height: 2999px;
    background-color: #f3f5f7;
}
.w{
    width: 1201px;
    margin:auto;

}
.header{
    /* float:left; */
    /* background-color: #ffffff; */
    height: 101px;
}
.logo{
    float:left;
    padding-top:30px;
    margin-right:15px;
     width: 196px;
     height: 40px;
      
}

.nav ul{
    float:left;
}
.nav ul li{
    float:left;
    margin:35px 0 0 44px; 
    text-decoration:none;
}
.nav ul li:hover{
    border-bottom:2px solid #00a4ff;
    
    padding-bottom:5px;
}
.nav ul li a{
    color:#050505;
    font-size:18px;
}
.nav ul li a:hover{
    color:#00a4ff;
}

.search{
    float:left;
    width: 411px;
    height: 40px;
    padding-top:30px;
    padding-left:95px;
    /* background-color: pink; */
}
.search input{
    float:left;
    width: 359px;
    height: 36px;
    border:1px solid #00a4ff;
    border-right:0;
    outline:none;
}
input::placeholder{
    padding-left:10px;
    /* color:pink; */
}
.search button{ 
    float:left;
    width: 50px;
    height: 36px;
    border:0;
    outline:none;
    background-image: url(../study/images/矩形\ 9.png);
}
.Sign-in img{
    padding-left:30px;
    padding-top:35px;
}
.Sign-in span{
    position:relative;
    top:-10px;
    left:2px;
    font-size:14px;
    color:#666666;
}

.banner{
    background-color: #1c036c;
    height: 421px;
    /* background-image: url(../study/images/banner2.png); */
}
.banner .box{
    height: 421px;
background-image: url(../study/images/banner2.png);
}
.banner .left{
    float:left;
}
.banner ul{
    float:left;
    height: 421px;
    width: 191px;
    background-color: rgba(0, 0, 0,.3);
    
}
.banner ul li a{
    /* display:inline-block; */
    font-size:14px;
    color:#ffffff;
    
}
.banner ul li a:hover{
    color:#00a4ff;
}
.banner ul li{
    /* float:left; */
    height: 45px;
    line-height: 45px;
    padding:0 20px 0 20px;
    /* margin-left:20px; */
}
.banner ul span{
    float:right;
}


.banner .right{
    float:right;
    margin-top:60px;
    width: 229px;
    height: 300px;
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}
.banner .right h3{
    font-size :18px;
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}
.banner .right h3 a:hover{
    color:#00a4ff;
}
.banner .title{
    width: 229px;
    height: 48px;
    background-color: #9bceea;
    line-height: 48px;
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}
.banner .title h3{
    /* margin:auto; */
    padding-left:66px;
    padding-top:4px;
}
.banner .list{
    /* width: 53px;
    height: 70px; */
    margin:20px 20px 0 20px;
    margin-bottom:5px;
    /* padding-top:10px; */
    background-color: #ffffff;
    border-bottom:1px solid #a5a5a5;
}
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}
.banner .list span{
    font-size:12px;
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}
.banner  .a{
display: block;
font-size:16px;
color:#00a4ff;
border:1px solid #00a4ff;
width: 198px;
height: 38px;
line-height: 38px;
text-align: center;
margin-left:17px;
}

.sort{
    margin-top:10px;
    margin-bottom:35px;
    height: 60px;
    background-color: #ffffff;
}
.sort .sort-list:hover{
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}
 .sort .sort-list li,h3{
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}
.sort .sort-list h3{
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    font-size:16px;
    color:#00a4ff;
}
.sort .sort-list li{
    margin:20px 0 20px 0;
    padding:0 30px 0 30px;
    border-left:1px solid #bfbfbf;
    font-size:16px;
    color:#050505;
}
.sort .sort-list h4{
    float:right;
    padding:25px 25px 25px 0;
    font-size: 14px;
    color:#00a4ff;
}
.dabox{
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      height: 597px;
      background-color: #f3f5f7;
}
.core{
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}
.dabox .core h3{
    font-size:20px;
    font-weight:400;
    width: 1202px;
    height: 42px;
    background-color:#f3f5f7;
}
.dabox .core h6{
    position: relative;
    top:12px;
    left:-78px;
}
.core ul li{
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    margin-right:15px;
    margin-bottom:15px;
    width: 229px;
    height: 271px;
    background-color: #ffffff;
    /* filter:blur(5px); */
}
.core ul li:hover{
    box-shadow: 10px 10px 10px -4px rgba(0, 0, 0,.2);
    /* filter:blur(0); */
}
.core ul li img{
    width: 100%;
    height: 155px;
}
.core ul li h5{
    font-size :14px;
    /* color:#050505; */
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    padding-top:25px;
    margin-left:25px;
    font-weight:normal;

    /* color:blue; */
}
.core ul li p{
    font-size: 12px;
    color:#999999;
    padding-left:25px;
     margin-top:20px;

}
.core ul li  span{
    color:#ff7c2d;
}


.box-core{
    height: 433px;
    /* background-color: pink; */
    margin-top:38px;
}
/* .box-core .box-xiao{
    height: 392px;
    background-color: pink;
} */
.box-core  .title-nav{
    float:left;
    background-color: #f3f5f7;
    width: 100%;
    height: 41px;
}
.box-core .title-nav h3{
    font-size:20px;
    font-weight:400;
    color:#494949;
    padding-right:352px;
    
}
.title-nav h5{
    float:left;
    font-size:16px;
    /* color:#00a4ff; */
    font-weight:400;
    padding-right:70px;
    margin-top:7px;
}
.title-nav h6 {
    float:right;
    padding-right:32px;
    padding-top:5px;
    font-weight:400;
    font-size:12px;
    color:#a5a5a5;
}
.box-core .box-img .tu{
    float:left;
    padding-right:15px;
    width: 229px;
    height: 392px;
    /* float:left; */
}

.box-img ul li{
    float:left;
    width: 227px;
    height: 270px;
    background-color: #ffffff;
    /* padding-bottom:20px; */
    padding-right:16px;
}
.box-img ul{
    /* width: 1400px; */
}
.box-img ul li img{
    width: 100%;
}
.box-img ul li h4{
    font-size:14px;
    color:#050505;
    font-weight:400;
    padding-top:25px;
    padding-left:25px;
    padding-bottom:20px;
}
.box-img ul li:hover{
    box-shadow: 10px 10px 10px -4px rgba(0, 0, 0,.3);
}

.box-img ul li span{
    font-size:12px;
    color:#999999;
    padding-left:24px;
}
.box-img ul li span b{
    /* font-style:none; */
    font-weight:400;
    font-size:12px;
    color:#ff7c2d;
    
}
.u ul{
    margin-top:18px;
}
#i{
    padding-right:0;
}
.box-core #pic{
    margin-top:25px;
}



/* 清除浮动 */
.clear{clear:both; height: 0; line-height: 0; font-size: 0}
/* 结束清除浮动 */
.botto{
    /* float:left; */
    margin-top:40px;
    width: 100%;
    height: 417px;
    background-color: #ffffff;
}
.botto img{
    padding:33px 0 25px 20px;
}
.botto p{
    font-size:12px;
    color:#666666;
    padding:0 0 17px 20px;
}
.botto .app{
    display: inline-block;
    border:1px solid #00a4ff;
    color:#00a4ff;
    /* background-color: #00a4ff; */
    width: 120px;
    height: 36px;
    line-height: 36px;
    text-align: center;
    margin-left:20px;
}
.botto .app:hover{
    background-color: #00a4ff;
    color:#fff;
}

.Left-column{
    float:left;
}
.Right-column{
    float:right;
}

.botto .Right-column dl{
    float:left;
   /*  padding-top:35px;
    padding-left:85px;
    padding-right:30px; */
    padding:35px 30px 0 85px;
    
}
.botto .Right-column dl dt{
    font-size:16px;
    color:#333333;
    padding-bottom:15px;
}
.botto .Right-column dl dt dd{
    font-size:12px;
    color:#333333;
    /* line-height: 15px; */
}

    </style>
    <link rel="icon" type="image/x-icon" href="../study/images/形状25拷贝2.png">
    <!-- <link rel="stylesheet" href="style.css"> -->
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                </li>
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                    <img src="../study/images/图层144.png" alt="">
                    <h4>Android Hybrid APP开发实战 H5+原生！</h4>
                    <span><b>高级</b>  •  1125人在学习</span>
                </li>
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                    <img src="../study/images/图层143.png" alt="">
                    <h4>Android Hybrid APP开发实战 H5+原生！</h4>
                    <span><b>高级</b>  •  1125人在学习</span>
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                    <h4>Android Hybrid APP开发实战 H5+原生！</h4>
                    <span><b>高级</b>  •  1125人在学习</span>
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                    <h4>Android Hybrid APP开发实战 H5+原生！</h4>
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